CN112952969A - Method and related device for controlling switch tube of wireless charging module - Google Patents
Method and related device for controlling switch tube of wireless charging module Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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Abstract
The embodiment of the application discloses a method and a related device for controlling a switching tube of a wireless charging module, which are used for reducing the damage of the wireless charging module during charging interruption. The method in the embodiment of the application comprises the following steps: acquiring a wireless charging module disconnection notification, wherein the wireless charging module disconnection notification indicates that the wireless charging module and the charging equipment are separated from a charging state currently; acquiring resonator current information according to the wireless charging module charging interruption notification; judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range or not according to the resonator current information; if so, reducing the duty ratio of the wireless charging module; after the preset period of time, improving the working frequency of the wireless charging module; and switching off a switch tube of the wireless charging module so that the wireless charging module suspends working.
Description
Technical Field
The embodiment of the application relates to the field of wireless charging, in particular to a method and a related device for controlling a switching tube of a wireless charging module.
Background
The wireless charging technology is derived from a wireless power transmission technology, and the principle of the wireless charging technology is that electric energy is transmitted between a wireless charging module and charging equipment through a magnetic field.
It can be divided into two types of low-power wireless charging and high-power wireless charging. The low-power wireless charging is usually in an electromagnetic induction type, the high-power wireless charging is usually in a resonance type, and the energy is transmitted to the charging equipment by the wireless charging module. Currently, the common wireless charging modes are: when the charging equipment is in the wireless charging process, the wireless charging module is located on the wireless charging module, the wireless charging module is matched with the internal circuit and the coil through the closed switch tube, so that the internal circuit is conducted, the primary coil generates alternating current with certain frequency, and certain current is generated in the secondary coil through electromagnetic induction, so that energy is transferred to the charging equipment at the receiving end from the transmission end of the wireless charging module.
However, when the charging device needs to stop charging, the user takes away the charging device from the wireless charging module, and at this moment, the energy is stored in the resonant cavity of the wireless charging module, and if the switching tube is turned off at this moment, the voltage and the current in the resonant cavity are suddenly changed, so that the switching tube is damaged, namely, the wireless charging module is damaged.
Disclosure of Invention
The first aspect of the embodiment of the present application provides a method for controlling a switching tube of a wireless charging module, which is characterized by comprising:
acquiring a wireless charging module disconnection notification, wherein the wireless charging module disconnection notification indicates that the wireless charging module and the charging equipment are separated from a charging state currently;
acquiring resonator current information according to the wireless charging module charging interruption notification;
judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range or not according to the resonator current information;
if so, reducing the duty ratio of the wireless charging module;
after the preset period of time, improving the working frequency of the wireless charging module;
and switching off a switch tube of the wireless charging module so that the wireless charging module suspends working.
Optionally, the obtaining of the disconnected charging notification of the wireless charging module includes:
and acquiring a wireless charging module charging interruption notification through the charging equipment.
Optionally, the obtaining of the disconnected charging notification of the wireless charging module includes:
and acquiring a wireless charging module disconnected charging notification through a disconnected charging detector in the wireless charging module.
Optionally, after determining whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range according to the resonator current information, the method further includes:
if not, after a preset time interval, whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero point range is judged again.
Optionally, the reducing the duty ratio of the wireless charging module includes:
and the duty ratio of the wireless charging module is reduced through data obtained by resonant cavity voltage detection.
Optionally, the reducing the duty ratio of the wireless charging module includes:
and reducing the duty ratio of the wireless charging module through the data obtained by the data table.
The second aspect of the embodiment of the present application provides a device for controlling a switch tube of a wireless charging module, which is characterized by comprising:
the charging device comprises a first acquisition unit, a second acquisition unit and a charging control unit, wherein the first acquisition unit is used for acquiring a wireless charging module charging interruption notification which indicates that the wireless charging module and the charging device are separated from a charging state currently;
the second acquisition unit is used for acquiring the current information of the resonator according to the charging interruption notification of the wireless charging module;
the judging unit is used for judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range according to the resonator current information;
the first processing unit is used for reducing the duty ratio of the wireless charging module when the judging unit determines that the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range;
the second processing unit is used for increasing the working frequency of the wireless charging module after a preset period of time;
and the third processing unit is used for turning off a switching tube of the wireless charging module so as to enable the wireless charging module to suspend working.
Optionally, the first obtaining unit includes:
and the second acquisition module is used for acquiring the wireless charging module disconnection notification through the charging equipment.
Optionally, the first obtaining unit includes:
and the third acquisition module is used for acquiring the wireless charging module disconnected charging notification through the disconnected charging detector in the wireless charging module.
Optionally, the first processing unit includes:
and the fourth processing module is used for reducing the duty ratio of the wireless charging module through data obtained by resonant cavity voltage detection.
Optionally, the first processing unit includes:
and the fifth processing module is used for reducing the duty ratio of the wireless charging module through the data obtained by the data table.
The third aspect of the embodiments of the present application provides a device for controlling a switch tube of a wireless charging module, which includes:
the device comprises a processor, a memory, an input and output unit and a bus;
the processor is connected with the memory, the input and output unit and the bus;
the processor specifically performs the following operations:
acquiring a wireless charging module disconnection notification, wherein the wireless charging module disconnection notification indicates that the wireless charging module and the charging equipment are separated from a charging state currently;
acquiring resonator current information according to the wireless charging module charging interruption notification;
judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range or not according to the resonator current information;
if so, reducing the duty ratio of the wireless charging module;
after the preset period of time, improving the working frequency of the wireless charging module;
and switching off a switch tube of the wireless charging module so that the wireless charging module suspends working.
Optionally, the processor is further configured to perform the operations of any of the alternatives of the first aspect.
A computer readable storage medium having a program stored thereon, the program, when executed on a computer, performing the method of the first aspect as well as any of the alternatives of the first aspect.
According to the technical scheme, the embodiment of the application has the following advantages:
in this embodiment, first, after the wireless charging module disconnection notification is obtained, it is determined that both the current wireless charging module and the charging device are separated from the charging state. At this time, resonator current information of the current wireless charging module needs to be acquired, and whether sinusoidal current in a resonant cavity of the wireless charging module is within a preset zero range is judged according to the resonator current information. If the sinusoidal current in the resonant cavity of the wireless charging module is within the preset zero range, the duty ratio of the wireless charging module is reduced, after the preset period time, the working frequency of the wireless charging module is improved, and finally the switch tube of the wireless charging module is turned off, so that the wireless charging module suspends working. When the sinusoidal current in the resonant cavity is positioned near the zero point, the duty ratio is changed, the voltage and current mutation of the resonant cavity is inhibited, the energy stored in the resonant cavity is released, the switch tube and the wireless charging module cannot be damaged by turning off the switch tube at the moment, and the occurrence of the condition that the wireless charging module is damaged when the wireless charging module is disconnected and charged is reduced.
Drawings
Fig. 1 is a schematic flowchart illustrating an embodiment of a method for controlling a switching tube of a wireless charging module according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart illustrating a method for controlling a switch tube of a wireless charging module according to another embodiment of the present disclosure;
fig. 3 is a schematic flowchart of an embodiment of an apparatus for controlling a switch tube of a wireless charging module according to the present disclosure;
fig. 4 is a schematic flowchart of another embodiment of a device for controlling a switch tube of a wireless charging module according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of another embodiment of a device for controlling a switch tube of a wireless charging module in an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of the present invention.
The embodiment of the application discloses a method and a related device for controlling a switching tube of a wireless charging module, which are used for reducing the damage of the wireless charging module during charging interruption.
In this embodiment, the method for controlling the switching tube of the wireless charging module may be implemented in a system, a server, or a terminal, and is not specifically limited. For convenience of description, the embodiment of the present application uses a terminal as an example for description of an execution subject.
Referring to fig. 1, an embodiment of the present application provides a method for controlling a switch tube of a wireless charging module, including:
101. acquiring a wireless charging module disconnection notification, wherein the wireless charging module disconnection notification indicates that the wireless charging module and the charging equipment are separated from a charging state currently;
the terminal needs to determine that the current wireless charging module is converted into the charging interruption state from the charging running state, the terminal needs to acquire the charging interruption notification of the wireless charging module, and the charging interruption notification of the wireless charging module can be used for determining that the wireless charging module is released into the charging interruption state. And entering the next step only when the terminal determines that the wireless charging module enters the charging state.
In this embodiment, there are various manners for obtaining the wireless charging module disconnection notification, which may be obtained by a disconnection detector inside the wireless charging module, or may be sent to the wireless charging module when the charging device is disconnected from charging, and the wireless charging module disconnection notification is mainly used to determine whether the wireless charging module enters a disconnection state, and any manner that can achieve this purpose is included in the protection scope of this embodiment.
In this embodiment, the wireless charging module may be an electromagnetic induction type wireless charging module, a magnetic field resonance type wireless charging module, or a wireless wave type wireless charging module, which is not limited herein, and any device conforming to the wireless charging principle is included in the protection scope of this embodiment. Optionally, the wireless charging module described in this embodiment is generally an electromagnetic induction type wireless charging module.
In this embodiment, the charging device may be a mobile phone, a tablet computer, a sweeping robot, or the like, which is not limited herein. Any electronic device having a wireless charging function is included in the scope of the present embodiment.
102. Acquiring resonator current information according to the wireless charging module charging interruption notification;
after the terminal obtains the wireless charging module disconnection notification, it is determined that the current wireless charging module and the charging equipment are separated from the charging state. At this time, the terminal acquires resonator current information according to the wireless charging module disconnection notification, where the resonator current information includes current information, voltage information, frequency information, and the like in the current wireless charging module operating state, and is not limited herein.
The step of obtaining the resonator current information aims at judging the state of the resonant current of the wireless charging module in the running state and adjusting the wireless charging module according to the state.
103. Judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range or not according to the resonator current information; if yes, go to step 104;
after the terminal acquires the resonator current information, the sinusoidal current state in the resonant cavity of the wireless charging module is determined according to the resonator current information. And whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range is judged.
When the terminal determines that the sinusoidal current in the resonant cavity of the wireless charging module is at the zero position or close to the zero position, step 104 is executed.
Because the current in the wireless charging module is sinusoidal current, when the sinusoidal current in the resonant cavity of the wireless charging module is at a zero position or is close to the zero position, the influence on the whole wireless charging module is reduced.
104. If so, reducing the duty ratio of the wireless charging module;
when the terminal determines that the sinusoidal current in the resonant cavity of the wireless charging module is at the zero position or is close to the zero position, the terminal controls the operation of the wireless charging module, and the duty ratio of the wireless charging module is reduced. At this time, the voltage and current in the resonant cavity are suppressed from abruptly changing due to the decrease in the duty ratio.
105. After the preset period of time, improving the working frequency of the wireless charging module;
after the duty ratio of the wireless charging module is changed and a plurality of preset periods pass, the working frequency of the wireless charging module is increased, and the stored energy in the resonant cavity is safely released.
106. And switching off a switch tube of the wireless charging module so that the wireless charging module suspends working.
The working frequency of the wireless charging module is improved at the terminal, and after the stored energy in the resonant cavity is safely released, the terminal turns off the switch tube of the wireless charging module, so that the wireless charging module is suspended to work, the safety of the switch tube is guaranteed, and the condition that the wireless charging module is damaged when disconnected and charged is reduced.
In this embodiment, first, after the wireless charging module disconnection notification is obtained, it is determined that both the current wireless charging module and the charging device are separated from the charging state. At this time, resonator current information of the current wireless charging module needs to be acquired, and whether sinusoidal current in a resonant cavity of the wireless charging module is within a preset zero range is judged according to the resonator current information. If the sinusoidal current in the resonant cavity of the wireless charging module is within the preset zero range, the duty ratio of the wireless charging module is reduced, after the preset period time, the working frequency of the wireless charging module is improved, and finally the switch tube of the wireless charging module is turned off, so that the wireless charging module suspends working. When the sinusoidal current in the resonant cavity is positioned near the zero point, the duty ratio is changed, the voltage and current mutation of the resonant cavity is inhibited, the energy stored in the resonant cavity is released, the switch tube and the wireless charging module cannot be damaged by turning off the switch tube at the moment, and the occurrence of the condition that the wireless charging module is damaged when the wireless charging module is disconnected and charged is reduced.
Next, the method for controlling the switching transistor of the wireless charging module in this embodiment is applicable to a wireless charging module formed by MOS transistors with small device ultimate electrical stress, for example: a wireless charging module consisting of four MOS tubes and a driving circuit is integrated on one chip.
Secondly, because this embodiment carries out the regulation of wireless charging module when the sinusoidal current of resonant cavity gets into zero point range, has reduced the condition emergence of the sudden change of current-voltage in the resonant cavity of wireless charging module for the maximum power of the wireless charging module who constitutes through the MOS pipe rises.
Referring to fig. 2, an embodiment of the present application provides another method for controlling a switching tube of a wireless charging module, including:
201. acquiring a charging interruption notification of the wireless charging module through the charging equipment;
the terminal obtains the wireless charging module disconnected charging notification through the charging equipment, the charging equipment can have state change when charging is disconnected, the charging state is converted into a non-charging state, when the charging equipment has the state change, the wireless charging module is indicated to enter the disconnected charging state, the charging equipment sends the wireless charging module disconnected charging notification to the wireless charging module, and the wireless charging module is informed to enter the disconnected charging state. This step is followed by step 203.
The following is illustrated by way of example: when the mobile phone is placed on the wireless charging module, the mobile phone displays the charging state. When the mobile phone is far away from the wireless charging module and the charging state is changed, the mobile phone sends information to the wireless charging module, and the wireless charging module determines that the mobile phone enters the disconnected charging state.
202. Acquiring a wireless charging module disconnected charging notification through a disconnected charging detector inside the wireless charging module;
the terminal obtains the wireless charging module disconnected charging notification through the disconnected charging detector in the wireless charging module. When the charging device is far away from the wireless charging module, there will be a change in data. The detector in the wireless charging module determines whether the wireless charging module in the current love is in the charging off state according to the data change. This step is followed by step 203.
203. Acquiring resonator current information according to the wireless charging module charging interruption notification;
step 203 in this embodiment is similar to step 102 in the previous embodiment, and is not repeated here.
204. Judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range or not according to the resonator current information; if yes, go to step 205 or 206; if not, go to step 207
Step 204 in this embodiment is similar to step 103 in the previous embodiment, and is not described here again.
205. If so, reducing the duty ratio of the wireless charging module through data obtained by resonant cavity voltage detection;
when the terminal determines that the sinusoidal current in the resonant cavity of the wireless charging module is at a zero position or is close to the zero position, the duty ratio of the wireless charging module needs to be reduced. When the duty ratio of the wireless charging module is reduced, the switching accuracy at the zero crossing point of the sinusoidal current of the resonant cavity needs to be ensured. For example: in the normal operation process of the wireless charging module, when the duty ratio is 50%, the duty ratio is reduced to be half of the current duty ratio, and if the duty ratio is smaller than 50% in the normal operation process of the wireless charging module, the wireless charging module needs to be accurately controlled in the current zero crossing mode in a resonant cavity voltage detection mode, and in addition, the wireless charging module switches the duty ratio.
206. If yes, reducing the duty ratio of the wireless charging module through data obtained through a data table;
when the terminal determines that the sinusoidal current in the resonant cavity of the wireless charging module is at a zero position or is close to the zero position, the duty ratio of the wireless charging module needs to be reduced. When the duty ratio of the wireless charging module is reduced, the switching accuracy at the zero crossing point of the sinusoidal current of the resonant cavity needs to be ensured. For example: in the normal operation process of the wireless charging module, when the duty ratio is 50%, the duty ratio is reduced to be half of the current duty ratio, and if the duty ratio is less than 50% in the normal operation process of the wireless charging module, the current zero-crossing needs to be accurately controlled in a data table look-up (software data calculation) mode, and in addition, the wireless charging module switches the duty ratio.
207. If not, after a preset time interval, judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero point range again;
when the terminal determines that the sinusoidal current in the resonant cavity of the wireless charging module is not in the zero position and is not in the preset range of the zero accessory, the terminal needs to judge again, namely, whether the sinusoidal current in the resonant cavity of the wireless charging module is in the preset zero range is judged again until the sinusoidal current in the resonant cavity is in the preset zero range. The next step 208 is performed.
208. After the preset period of time, improving the working frequency of the wireless charging module;
209. and switching off a switch tube of the wireless charging module so that the wireless charging module suspends working.
In this embodiment, first, after the wireless charging module disconnection notification is obtained, it is determined that both the current wireless charging module and the charging device are separated from the charging state. At this time, resonator current information of the current wireless charging module needs to be acquired, and whether sinusoidal current in a resonant cavity of the wireless charging module is within a preset zero range is judged according to the resonator current information. If the sinusoidal current in the resonant cavity of the wireless charging module is within the preset zero range, the duty ratio of the wireless charging module is reduced, after the preset period time, the working frequency of the wireless charging module is improved, and finally the switch tube of the wireless charging module is turned off, so that the wireless charging module suspends working. When the sinusoidal current in the resonant cavity is positioned near the zero point, the duty ratio is changed, the voltage and current mutation of the resonant cavity is inhibited, the energy stored in the resonant cavity is released, the switch tube and the wireless charging module cannot be damaged by turning off the switch tube at the moment, and the occurrence of the condition that the wireless charging module is damaged when the wireless charging module is disconnected and charged is reduced.
Secondly, the charging device acquires the wireless charging module disconnection and charging notification and the disconnection and charging detector in the wireless charging module acquires the wireless charging module disconnection and charging notification, so that the wireless charging module can determine the disconnection and charging state more quickly, and the efficiency is improved.
The above embodiments describe the method for controlling the switch tube of the wireless charging module, and the following describes the device for controlling the switch tube of the wireless charging module.
Referring to fig. 3, an embodiment of the present application provides a device for controlling a switch tube of a wireless charging module, including:
a first obtaining unit 301, configured to obtain a wireless charging module disconnection notification, where the wireless charging module disconnection notification indicates that the current wireless charging module and the charging device are disconnected from a charging state;
a second obtaining unit 302, configured to obtain resonator current information according to the wireless charging module disconnection notification;
the judging unit 303 is configured to judge whether a sinusoidal current in a resonant cavity of the wireless charging module is within a preset zero range according to the resonator current information;
the first processing unit 304 is configured to reduce a duty cycle of the wireless charging module when the determining unit determines that the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range;
a second processing unit 305, configured to increase an operating frequency of the wireless charging module after a preset cycle time;
the third processing unit 306 is configured to turn off the switch tube of the wireless charging module, so that the wireless charging module suspends operation.
Referring to fig. 4, an embodiment of the present application provides another apparatus for controlling a switch tube of a wireless charging module, including:
a first obtaining unit 401, configured to obtain a wireless charging module disconnection notification, where the wireless charging module disconnection notification indicates that the current wireless charging module and the charging device are disconnected from a charging state;
optionally, the first obtaining unit 401 includes a second obtaining module 4011 and a third obtaining module 4012.
The second obtaining module 4011 is configured to obtain a charging interruption notification of the wireless charging module through the charging device;
and a third obtaining module 4012, configured to obtain a wireless charging module disconnection notification through a disconnection detector inside the wireless charging module.
A second obtaining unit 402, configured to obtain resonator current information according to the wireless charging module disconnection notification;
a determining unit 403, configured to determine, according to the resonator current information, whether a sinusoidal current in a resonant cavity of the wireless charging module is within a preset zero range;
the first processing unit 404 is configured to reduce a duty ratio of the wireless charging module when the determining unit determines that the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range;
optionally, the first processing unit 404 includes a fourth processing module 4041 and a fifth processing module 4042.
The fourth processing module 4041 is configured to reduce the duty cycle of the wireless charging module according to data obtained by detecting the resonant cavity voltage.
A fifth processing module 4042, configured to reduce a duty cycle of the wireless charging module according to the data obtained from the data table.
A second processing unit 405, configured to increase an operating frequency of the wireless charging module after a preset period of time;
and the third processing unit 406 is configured to turn off the switch tube of the wireless charging module, so that the wireless charging module suspends operation.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
Claims (10)
1. A method for controlling a switch tube of a wireless charging module is characterized by comprising the following steps:
acquiring a wireless charging module disconnection notification, wherein the wireless charging module disconnection notification indicates that the wireless charging module and the charging equipment are separated from a charging state currently;
acquiring resonator current information according to the wireless charging module charging interruption notification;
judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range or not according to the resonator current information;
if so, reducing the duty ratio of the wireless charging module;
after the preset period of time, improving the working frequency of the wireless charging module;
and switching off a switch tube of the wireless charging module so that the wireless charging module suspends working.
2. The method of claim 1, wherein obtaining the wireless charging module disconnection notification comprises:
and acquiring a wireless charging module charging interruption notification through the charging equipment.
3. The method of claim 1, wherein obtaining the wireless charging module disconnection notification comprises:
and acquiring a wireless charging module disconnected charging notification through a disconnected charging detector in the wireless charging module.
4. The method of claim 1, wherein after determining from the resonator current information whether the sinusoidal current within the resonant cavity of the wireless charging module is within a preset zero range, the method further comprises:
if not, after a preset time interval, whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero point range is judged again.
5. The method of any of claims 1-4, wherein the reducing the duty cycle of the wireless charging module comprises:
and the duty ratio of the wireless charging module is reduced through data obtained by resonant cavity voltage detection.
6. The method of any of claims 1-4, wherein the reducing the duty cycle of the wireless charging module comprises:
and reducing the duty ratio of the wireless charging module through the data obtained by the data table.
7. The utility model provides a device of wireless charging module's switch tube control which characterized in that includes:
the charging device comprises a first acquisition unit, a second acquisition unit and a charging control unit, wherein the first acquisition unit is used for acquiring a wireless charging module charging interruption notification which indicates that the wireless charging module and the charging device are separated from a charging state currently;
the second acquisition unit is used for acquiring the current information of the resonator according to the charging interruption notification of the wireless charging module;
the judging unit is used for judging whether the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range according to the resonator current information;
the first processing unit is used for reducing the duty ratio of the wireless charging module when the judging unit determines that the sinusoidal current in the resonant cavity of the wireless charging module is within a preset zero range;
the second processing unit is used for increasing the working frequency of the wireless charging module after a preset period of time;
and the third processing unit is used for turning off a switching tube of the wireless charging module so as to enable the wireless charging module to suspend working.
8. The apparatus of claim 7, wherein the first obtaining unit comprises:
and the second acquisition module is used for acquiring the wireless charging module disconnection notification through the charging equipment.
9. The apparatus of claim 7, wherein the first obtaining unit comprises:
and the third acquisition module is used for acquiring the wireless charging module disconnected charging notification through the disconnected charging detector in the wireless charging module.
10. The apparatus according to any one of claims 7 to 9, wherein the first processing unit comprises:
and the fourth processing module is used for reducing the duty ratio of the wireless charging module through data obtained by resonant cavity voltage detection.
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